Optimization of Measuring Methods for Methane Clumped Isotopologues 12CH2D2

LU Li; WANG Xin-chu; LI Si-liang; PANG Zhi-yong

doi:10.19969/j.fxcsxb.22052404

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Optimization of Measuring Methods for Methane Clumped Isotopologues ¹²CH₂D₂

Scientific Papers | 更新时间：2023-01-04

- Optimization of Measuring Methods for Methane Clumped Isotopologues ¹²CH₂D₂
- Journal of Instrumental Analysis Vol. 41, Issue 12, Pages: 1822-1826(2022)
- 作者机构：
  
  1.天津大学地球系统科学学院，表层地球系统科学研究院，天津 300072
  2.天津大学物质绿色创造与制造海河实验室，天津 300192
- 作者简介：
- 基金信息：
- DOI：10.19969/j.fxcsxb.22052404
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鲁丽,王欣楚,李思亮等.甲烷团簇同位素¹²CH₂D₂测试方法优化研究[J].分析测试学报,2022,41(12):1822-1826.

LU Li,WANG Xin-chu,LI Si-liang,et al.Optimization of Measuring Methods for Methane Clumped Isotopologues ¹²CH₂D₂[J].Journal of Instrumental Analysis,2022,41(12):1822-1826.
鲁丽,王欣楚,李思亮等.甲烷团簇同位素¹²CH₂D₂测试方法优化研究[J].分析测试学报,2022,41(12):1822-1826. DOI： 10.19969/j.fxcsxb.22052404.

LU Li,WANG Xin-chu,LI Si-liang,et al.Optimization of Measuring Methods for Methane Clumped Isotopologues ¹²CH₂D₂[J].Journal of Instrumental Analysis,2022,41(12):1822-1826. DOI： 10.19969/j.fxcsxb.22052404.

摘要

与传统稳定同位素技术相比，甲烷团簇同位素技术具有分辨率高、检出限低的优点，从而为甲烷产生机制和转化过程研究提供了新的视角。甲烷的两种团簇同位素体,13,CH,3,D和,12,CH,2,D,2,具有独特的物理与化学性质，并可提供甲烷内部同位素平衡状态的重要信息。目前国内刚建立了对这两种团簇同位素体的测试方法，部分指标的测试精度有待于进一步提高。该文依托国内首台高分辨气体稳定同位素质谱仪（HR－IRMS），通过平衡仪器的分辨率和灵敏度，对甲烷团簇同位素,12,CH,2,D,2,测试方法进行优化，在关闭Aperture选项条件下通过峰拖尾校正，可使［,12,CH,2,D,2,+,］信号得到有效提高，并通过［H,2,O,+,］峰模拟计算校正,13,CH,3,D峰与,13,CH,5,峰拖尾产生的空白。基于连续测试，成功地将测试精度提高到1.29‰，达到国际水平。

Abstract

Recently developed methane clumped isotope techniques provide fresh and novel insights into methane production and transformation，which have been unobtainable through other techniques such as traditional stable isotope．Methane clumped isotope techniques have the advantages of high resolution and low detection limit．,13,CH,3,D and ,12,CH,2,D,2, have their unique chemical and physical properties recording information on methane isotopic equilibrium states．The measuring methods for paired clumped isotopologues have just been established in China，and the precision of ,δ,12,CH,2,D,2, need to be further improved．Based on the first high-resolution gas stable isotope mass spectrometer（HR－IRMS） in China，the measuring method for ,12,CH,2,D,2 ,was optimized by balancing the resolution and sensitivity of the instrument．The ［,12,CH,2,D,2,+,］ intensity was effectively improved．The analysis precision was successfully improved to 1.29‰ by using H,2,O,+, peak simulation calculation for the contribution of adjacent ,13,CH,3,D and ,13,CH,5, peaks to the total background.

关键词

甲烷团簇同位素高分辨气体稳定同位素质谱仪（HR－IRMS）精度

Keywords

methaneclumped isotopehigh-resolution gas stable isotope ratio mass spectrometer（HR－IRMS）precision

references

Stolper D A，Sessions A L，Ferreira A A，Santos Neto E V，Schimmelmann A，Shusta S S，Valentine D L，Eiler J M．Geochim. Cosmochim. Acta，2014，126：169－191.

Zhang N Z，Snyder Glen T，Lin M，Mayuko N，Alexis G，Naohiro Y，Ryo M，Yasuhito S．Geochim. Cosmochim. Acta，2021，315：127－152.

Shuai Y H，Zhang S C， Hu G Y．Bull. Mineral. Petrol. Geochem. （帅燕华，张水昌，胡国艺．矿物岩石地球化学通报），2018，37（4）：559－571.

Young E D，Kohl I E，Sherwood Lollar B，Etiope G，Rumble D，Li S，Haghnegahdar M A，Schauble E A，McCain K A，Foustoukos D I，Sutclife C，Warr O，Ballentine C J，Onstott T C，Hosgormez H，Neubeck A，Marques J M，Perez Rodriguez I，Rowe A R，LaRowe D E，Magnabosco C，Yeung L Y，Ash J L，Bryndzia L T．Geochim. Cosmochim. Acta，2017，203：235－264.

Eiler J M．Earth Planet. Sci. Lett.，2007，262：309－327.

Douglas Peter M J，Stolper Daniel A，Eiler John M，Sessions A L，Lawson M，Shuai Y H，Bishop A，Podlaha O G，Ferreira A A，Neto E VS，Niemann M，Steen A S，Huang L，Chimiak L，Valentine D L，Fiebig J，Luhmann A J，JrWilliam E S，Etiope G，Martin S，William P I，Moran J J，Kitchen N．Org. Geochem.，2017，113：262－282.

Thiagarajan N，Kitchen N，Xie H，Ponton C，Lawson M，Formolo M，Eiler J．Geochim. Cosmochim. Acta，2020，275：188－208.

Wang X F，Liu P，Liu C J，Meng Q．Bull. Mineral. Petrol. Geochem. （王晓峰，刘鹏，刘昌杰，孟强．矿物岩石地球化学通报），2018，37（4）：580－587.

Jautzy J J，Douglas P M J，Xie H，Eiler J M，Clark I D．Earth Planet. Sci. Lett.，2021，562：116841.

Giunta T，Young E D，Warr O，Kohl I，Ash J L，Martini A，Mundle S O C，Rumble D，Pe’rez Rodrı’guez I，Wasley M，LaRowe D E，Gilbert A，Lollar B S．Geochim. Cosmochim. Acta，2019，245：327－351.

Ono S，Wang D T，Gruen D S，Lollar B S，Zahniser M S，McManus B J，McManus D D．Anal. Chem.，2014，86（13）：6487－6494.

Young E D，Rumble D III，Freedman P，Mark M．Int. J. Mass Spectrom.，2016，401：1－10.

Eldridge D L，Korol R，Lloyd M K，Turner A C，Webb M A，Miller T F，Stolper D A．ACS Earth Space Chem.，2019，3（12）：2747－2765.

Dong G N，Xie H，Eiler J，Zhang N Z，Nakagawa M，Yoshida N，Eldridge D L，Stolper D，Albrecht N，Kohl I E．Thermo Scientific White Paper，2020，WP30767.

Pang Z Y，Wang X C，Li S L，Lang Y C，Tian Y R，Lu L．Chin. J. Anal. Lab. （庞智勇，王欣楚，李思亮，郎赟超，田有荣，鲁丽．分析试验室），2022，https：//doi.org/10.13595/j.cnki.issn1000-0720.2021.111703https://doi.org/10.13595/j.cnki.issn1000-0720.2021.111703.

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